Rotary grinding machines are critical in India’s sand and aggregate processing industry, transforming raw materials into high-quality construction-grade outputs. These robust machines integrate crushing, grinding, and screening functions to optimize production efficiency.
1. Primary Rotary Crusher: Handles large rocks (up to 1,500mm feed size) with 200-800 TPH capacity
2. Vertical Shaft Impact Grinder: Produces cubical sand particles (0-5mm) with dual motor drives (2×160kW)
3. Rotary Screen: Multi-deck vibration screening (3-5 layers) for precise grading
| Model | Power (kW) | Max Feed Size | Output Range |
|---|---|---|---|
| RG-1000 | 132 | 50mm | 30-100 TPH |
| RG-1500 | 220 | 80mm | 80-200 TPH |
| RG-2000 | 315 | 120mm | 150-350 TPH |
A 250TPH plant achieved 98% usable aggregate yield using:
– Primary rotary jaw crusher
– Tertiary cone grinding module
– Airflow classification system
Reduced oversize material by 40% compared to conventional systems.
Q: How to reduce wear on grinding rollers?
A: Implement automatic lubrication systems and use tungsten carbide inserts.
Q: Ideal moisture content for rotary screening?
A: Maintain below 5% moisture; add dryers if processing wet material.
Q: Noise control measures?
A: Install rubber damping bases (+15dB reduction) and acoustic enclosures.
Modern Indian plants increasingly adopt PLC-controlled rotary grinding systems with real-time particle size analyzers for consistent output quality meeting IS 383 standards. Proper equipment selection ensures optimal production of zone
